Specifications

RF-BM-BG22B1
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Shenzhen RF-star Technology Co., Ltd. Page 6 of 15
2.2 Module Pin Diagram
Figure 3. Pin Diagram of RF-BM-BG22B1
2.3 Pin Functions
Table 3. Pin Functions of RF-BM-BG22B1
Pin
Name
Pin Type
Description
Pin1
GND
－
Ground
Pin2
VCC
－
2.2 V ~ 3.8 V, recommended to 3.3 V
Pin3
PA01/SWCLK
I/O
GPIO/SWCLK(connect jlink)
Pin4
PA02/SWDIO
I/O
GPIO/SWDIO(connect jlink)
Pin5
RESET
I
Reset, active low, internal pull-up.
Pin6
PA03
I/O
GPIO
Pin7
PA04
I/O
GPIO
Pin8
GND
－
Ground
Pin9
GND
－
Ground
Pin10
PC02
I/O
GPIO
Pin11
PC03
I/O
GPIO
Pin12
PC04
I/O
GPIO